Printable View
I have some 30 cal. 1/2 jackets that measure .307 od .017 thick and .274 id. and .335 long. What are they used for? I was thinking of buying a 270 Lee mold and shoot in my 308 bolt gun but a 270 boolit measures .277. :confused: The box say .30 caliber Half Jacket .305 diameter.
Speer and Hornady sell them.
They're for making your own half jacketed bullets.
You need a 'swag-a-matic' press to seat the cores.
The idea is-- what ever a gas check can do,,,,,, a half jacket can do better.
Can you use an RCBS press?- I have 4 of those. Looks like too much trouble.
You'd have to do some research and read up about these guys that do the swaging and make their own jackets.
For me- I'm good with cast & regular gas checks, and wouldn't bother.
I'd think you need a heavier duty press though, and they're out there.
Ed -thanks for talking me out of it. I'll just stick to my 450's and gas checks.
They were primarily made for the C and H Swage o Matic and Herters 9 ton press and there were others.
There were also single dies made for swaging on a single stage press, like the Rock Chucker, that used them.
There might be some interest on S and S for them.
I have a set of die’s made by Hornady that uses them. The ram is replaced and there is a part that goes in where the dies screw in that makes the nose of the bullet.
They come out like Speer Plinkers.
Might be interesting to use the "1/2 Jacket" in making jacketed bullets for M1 Carbine.
Not sure the Length of standard ball for M1 Carbine; but when making jackets from 5/16 copper tubing for 175 Grain .308 bullets I use an overall length of 1.091" in the final jacket. For a 150 Grain .308 bullet I use an overall jacket length of about .960 inches. These result in a Fully enclosed nose with lead almost at the tip end on the final bullets with an 8S nose.
The .335 overall length of these .308 Jackets would result in an exposed lead nose I think; but it would still be interesting.
Speer does, or did sell them like that in their re loader bullet line.Quote:
Originally Posted by MUSTANG
They were specifically mad to load .30carbine. It is a RN, but there was no Lead touching the bore.
I think they were also offered for .38cal. & .44 revolvers like that too.
Either as complete bullets, or just the half jackets for the do-it-yourselfers.
Normally the half jackets were made for pistol bullets but in 30 cal they would work nicely for 30 carbine. They would work for rounds for the 7.62 x 25, 30 mauser, 32/20 or the new 30 cal concealed carry or what ever it's called. I am currently using a Swag-O-Matic and spent 50 cal BMG primers to make an 85 gr swc for my 2 7.62 x 25 pistols.
If you don't need them, put them on the S&S section. Some one will want them. I don't think anyone is currently producing half jackets.
Ended up making a swap with post #7 -They are gone with the wind.